MC尼龙6／纳米ZnO复合材料的非等温结晶行为  

Study on Nonisothermal Crystallization Behavior of MC Nylon 6/ZnO Nanocomposite

作　　者：周莉[1] 田彦文[1] 臧树良[2] 张建中[3] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [3]抚顺职业技术学院化工系,辽宁抚顺113006

出　　处：《东北大学学报（自然科学版）》2008年第1期100-104,共5页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2005AA001510)

摘　　要：采用差示扫描量热法研究了原位聚合反应制备的MC尼龙6/纳米ZnO复合材料的非等温结晶行为,并利用修正Avrami方程的Jeziomy法、Mo法和Kissinger法对其动力学过程进行了分析.结果表明:由于纳米ZnO起到成核剂的作用,使晶核的生成变快,提高了MC尼龙6的结晶温度和成核速率;同时纳米ZnO粒子和MC尼龙6分子链之间存在相互作用力,阻碍了MC尼龙6分子链在结晶过程中的运动,导致结晶活化能提高,晶体生长速度下降,结晶度降低.The nonisothermal crystallization behavior of the MC nylon 6/ZnO nanocomposite prepared by in situ polymerization was studied by means of differential scanning calorimetry （DSC）, where a kinetic analysis was made by Jeziomy, Mo and Kissinger methods based on modified Avrami equations. The results showed that the nucleus growth of MC nylon 6 is accelerated because the nano-sized ZnO particles are playing the role of nucleating agents to expedite the crystallizing rate and raise the temperature of MC nylon 6. At the same time, the movement, of MC nylon 6 molecule chains is suppressed in crystallization process due to the interaction between nano-sized ZnO particles and MC nylon 6 molecule chains, thus increasing the activation energy of MC nylon 6 crystallization and decreasing the crystal growing rate and crystallinity.

关 键 词：MC尼龙 纳米ZNO 复合材料 非等温结晶 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]